Transient Effects in ‘Telephone Switching Circuits When Relay Windings are Disconnected iy TN, WAGAR irl evi of fh om The paper resets om aie ag age, ‘nergy pon aneneeeon 2 Pitot Howto oat agraens Bren oes ed eine, he nays of potable to @ ware Gan. saaiog Sedo owl wetting irae selene seecoong rata Tafetuce nike of the cut eer, vt aot we Asonsnetion of x ry nw oe tning oinesit vozess uae ef linmsezant dese priblen's iv whies 2 nnestetve retaeal Js swale Thece manly conecrn ithe tego tine a Lo stn, for The Tamsin cuncert vd eal ge sere whlet are a pn al Cease af ossasinzs ad brovonue in Te #aeuity. The stb Teltwertnt a chia rele to @ change fn she uns agp sation Sma ite opeavel te He wekdne| absa, 2.4 very slo anlage rere Mx evn arta sorpesssivels “eg ie 1 q nillicerwe, Tee ctauens sina sues bows to oveinn amseh ext fre iforsss afer cazunresion flew "iw teas Ther: about 10 * fo MG! sonal camag whies Ue conch magunizaion Bas mut 38 Ihud ie to change aggre tly. Thin, elle beth phous am felis to fe cor damygzetineu enror, Hele penformanee lands fe be con rolled y ifcene Hoare: oe aualtce chr rors ‘The ambjece of eles Line aa Tig ve eign ef a Plena, Tas breton a fin yin tive ln Sor may yeare” * teed Ielabervins “wslvige the vow demegnetination surve. However, nls unl atie ot emypiea teefsuenle have on fe een auilale Uo dimers Toe bavi ranges ol eure om slag. AR apalstec] 08 via SVE aRCHENEONE SEU, SOMESEER TTL Aeseptvr of Csr surges i indiepeaeable tthe andersanding af felinat Uvalowas cr taiclor freveranee im the eontaes iin find a esunred inne in thse acter subjets bis promsted their Father sty as outed ie thie rene "The une saci nes 7 fom the convenes fw the Fueranes Ue ruintain eerste eter she maiz euen: pach bes beex epee fearon fven ilvetad in the sipeit-eapaeitenes, tegorealy hanging ahean I high allages, vee do severed amie tet Ue frigid Unter vane Galan To ocpacianee ia vere anual. Prvians Sralysce Disel env nonventiwral Hanpeerereat fC tate ase ne: agreed ll seth reorient ote ay shies Sa euibly ney ube oo nels cael tae ray ff edew eure Teen 4 Un wom Te alia begs Ui the reser salva, os seplietione wens posable by aanmsing iv lfecie nny of Sasttange ahi ern io the diferent permease Ue hal’ geet ein Pe erate Fegurt, Thic watson. andar allowance fr ed ener lore ior Fle eih sgore we wif apevinene arn sCerr decedent cath finn in Hy iis pavametere Over the thee green oF prinepal insert when stucying beckon vozaye, this wlleaive infuses ie ane ta be esentilly ecrsans boing basin’ éctrmines by the Ai'eutil gevicramee of tae con's deneaguotiantion curve at the ‘erates point lycra sis rege, score pala nn sh as a Sf a peasestively inerewsing vermearao, sehich rougnece Coe wer tenge ech demaatcintien eure Lt eons la. els insprave the seearsey. Ve stody mac in thin prt date aly wi th rege wsssu tho ele ples pointe 1 Phi afd nalyis Porte Vecgedone a il lai! fo tv genial esas of «aoa rindi uying Woh a sboverienited seeondcay and an 120 rotons. 9 came ‘uanly ee foe enatace prorsetioa, bridicg the main wining. By testy dale vl eae of thee cern, tae Touts ean Ren herimplited te coves a renge f pele» ual ae eh 9 Uren rinprotecred rea el, tae ell ‘idued by eer expe ur wr seer alee, ate the an ears ex OF Heese, the muck common ate, hae forcing call unis or yw omar we fesansw at sila els state I bebe) ht Bava on good experimental asmotrient for w ail sng af tet ra Ute seas tee applied bon mre nf gue wl mal ig cdreut deen probhs rantEnr REPRE 2000 ‘The suns In fv sand as serrated. by che enrves in i 1 {le vier shows 4 typien relay site ceil secerttie "orn fut th tasenl euien: end voltage sarges whet contzet is opera ‘Aimaor objeeive i to showse tines sings ana sical Ube ini blast of the anne to dete oepeceione for etamen: asc veltoge, fee Sunotion of tang, wren Hh baal i lieanngetod hy an “dee fier nabeeadows} soar The emwetseurvrs in ig. alow 13 sea trovlte wos a tlcohune ey is conmelied By (ionareing) meee fomisels "They ase Sracteal cert whenaver the exiting fs ome by m suenane ue, 9 Teaaeton, oF a mezeUty conte: high is wal hough franlared to aru brews Sieh urge Ja detemeine the coulitions for heeatdown ‘shen appueatus, irng, or etal of cnow disletrn np nte senor i Yas exalt. Fo> example the regular carves iz Tig, 1 show “he msltiple reckeowns thet corse fences 0 typeens eager win, ws Ps esfages eperats, TT teenie waa obtsined by repli the precious eat ennlae: by £2 tdizare mechesical eowtaes to eieapaing tlay) aad aeposting the menses as dole exposure em the extn fn Sek bro ox, nominee toound “Lbtype tecrenci” or Sober tee, open eucconive ehenging +f loa naymotnns tw Tae ene Iyer sds oH eontocts gp. iscvarge trang Le Teal erat inva, cad 4 concwed shirging evil. Tey have been sesovibed Cnuitativey in osraidonile ail’ “oad tense hae alo been ene Sone at a suamittive reese" Bark stcorcie eauing ose ie tho bogintrg of t nev "idea ssa sage ese the dation tic cure fuses Ps aly of st brent. A sec ane the sal saatnes these anges Fon de al ‘cies a i gr eta ay tv Toa iol Pianta ete ete et cae 900 tu wether sae IERL ancvA!, NaNO I Tint ofthe amount of induetive cong bie is woilale tw be dis Stpled into the arcing coset circuit, with attendant supass and ante emer 1 Ojon ‘This yuger sine Io pero these wiationshipe im general fer with eapudh esperiments: data to verify the avalses, Some spelt folds of ray end czeui devizn whore vmocin’> appears sce fsmeeted, and whieh were a snontive for This ssl, wi? How be smmatiae, 13) hs eal ton uf te “ae conta ge, i ond that all yatiatons are dotinable in term of two dmensionleee cific! = CR'SN", the ned sign Seven” and 4/6, Pe i of wesw ho penny el ena (nenarzed i ‘Teble I and further deseribed bein), he supe equations fos, he be usec wo pradiet musk varicons a» peak vole tunplituie cad Stoquezey of soilations, rico tno, or dsarco of tlomping, Ihe grasses shoes that ie rstsoee belay between iv parties lorvaluoe 0°, sii open aaced elaine above er below hse yl (6a) An uvdemtene mg of Yao tse ous at indtoive energy elevsed, Relation dips are fsa il eerie Ut pact onsale dtgra nd eats Hespsow Leo, ca ha Inet abies gine fats oupcritive exsqe aoenge Fan ahi Ie ine Ie etna acs enanepnalnteg ses A Taller aesianling wf Ug. portion of the oie sexed aduacire anergy thet ean be renee: curfuz whe cransient pevled, she mojarfectures of whiea depead on iu tkoinererzencal Setuunance of the stetie demragnetinaion curse at the rlessing, sien, en (b) the enazpy reparnmont Conn the haere fting tceh are broads iserval, This spo ally print in the sy af contant ern, fj A explunicion of wom hither “wonnlens rll, Area hos ares ta) A cumnitacizepiecuee af eelowene wa? energy taineoe hy eto beg ie ren ne 1 hes Aiveetly Gs the age wf eu mare, H) seat il se wore, rater tla the alana een thal seca Tow sipgeso. {h) A syuasiaige pitner of The oilaions ‘shih goer sil “uspoeresenge” says. The iy onde be felted Wo tha! uti ef the nin indi Fish fs moon masons vena 001 Trance I-Cmeres Coser FT fire pln Se a ae ot ae ole ° fees se aygolc veya el ean pte maa St L uate a Tos shies t9 sake Seegn ostmtes toe a me of eps fons, Hsp ors (at Nuit alee a2 onsale fn HF opr Taal sal bas ugg eB eat, nin (ra elie oes ean, ol ang eS" ype ender ie the ail ile feng ace fy Py, Pa ren peetying weir irng insu ign ol Bees ge Shoat ike sil Tage nanbors of Larue are diponsaetd, fF) Che pope eval eta Ine lacie ering ff olay cote ta detomae seorher tain tema also 02 amt svar TUNE SOLE, NOVI breakdown strergth fe siisuesnr. (For tis tay whieh hae oer 2 te oF mp nse Ue ay yor Me rgd fo. ens i ever hy “ial™ yaae iE tho ens stint stage canes an Some beak, the ells vjelel nx a iar pint erste fare Desanee foslly imanbign sr lene cml ygoral wn) Gl) The aly ta renteres ineandlsive dete “ian Tat enntock tars, or to beer doline vests sone yen sgn a Hct their apvicaity evs sens in Ula ina ny he better atest foi) Aeseemont of the rant impeot eae erion and rely finistuigatios, Bor cxassle, a saalle eloy eck unl? tsane 2 ezevgy for tee enuteet to cancel and teufore @ ocller consist volume “ur given conch Ife, Asner foneaet volume cess lees wear allogrey i the elas wr rmatine meting, aoe heaee Laver ieee york requ ement, ech a cuntrdingly walle vey rgie. Ta Kiso Fe the ineraetion oeteeen Cie rows’: ialel'ee verge wad the anti eontet wir ecm bean imported b> dosign fap anil el non ft eure eas aaa Us fase eee uth ores Ile strustars Gina tbe sow ale foo relay sont ite winding of ath, pope ei int nes mer aoaione: Anais, Kxperiment ond Dione, Ts real lana sara fe gone tory ring t's whinh for ease eaves are omeidened toy camp Tue hile Trolmont in thief Sibettutions are then aad which sider le nul Ie equate sed nw to dares aaemer for theimporeact Dee’ eoge a the anpaotered aelay ea, ke majce aspera Pea wolves telat 20 thi ase 4 thi motos, we sell} develo the iret cuuctions end apply taam tu the ovadon se nf yp ste oa od we {8} ete dlmoping, Zi) oak volo. eal Ue enon dang 21 Deslepmen ofthe Ciel Fa ‘This ative deine a sn cami, poser ts 009 eeustions, sedge he ising ssinton Gay emment nt endian, Lie Cal cucsen nani Gn hot neve the ned Yala af thang onli volage, wal sate af ean o:volaye spasnievr artvn 00 2.1 Chole of Civeutt Model A simple zoey winding sated by sa J networy ing eoaunet ed fo disconnected from a heltery by nico of an Hess enntach wis tcson for the study. A only the surge ua diseonnesion is sti the infucnee of wiring ean Be ined 1m te captive Lem, a 9 the esis are generally applieale whether ennnrerions between fontaet and sel are vary shoe, aan printed siring booty oF fie Jong, thew a coments hogy onitehboardeabling TRetctions aud surge iapetcace of the niting ane impwrtant fn con Sideving the individual showering aees 2s has been dae for eeanpe in room work of GW. Mill” end, Phariey but thes fates #06 outside che seope of the prescat stud ‘Aer sotne inital experiments, it wes fond thet an avlayise repre sentation of nach peley etl! svat reuired the recosition of (9) te dite evince otk il; (a m-eoupled secondary ‘winding 20 ceptoset ere Tose, spr seotes, wes (i) a loco Taped inductance rprorentne tne eaion of the desnognetiation curve fat ie etre ering the intial snes wd 8) Cle ocean feds) a potion a hein Saye ir at oul ith He care ne sernncey winding. "Ts esting sy eri ies jn Wig. Du For ceamale, (fh ie ut fourd thos distbaved earadtanoe Of piel eray ls sn the xrily nh YODA pF nk eh fae Fe wbhicteateies miele ott de eit oa Sook nen ama svevene Ezemscose aot, SormmEN ft tu inom, Likewin, (GF es tou chat te dehanges of typical relay sfruclure can bn ao Tast hat be ese lacs the, desipasion in an ffetve sozondary wéncing) met be recgzize. The aditonal Fafluenee of that rion of Tie eal wining which in nt enupled to the "seoondare” shy «signe role wlr when dealing wits wile faving secondary ering of a pope se oF ahew- aren tans it wll bo eruminad ssa nat he abe erent eet E11 Falling ths gonend vations, the simpler enses tere foul fe peril ees og, selling Hh raleation network raiaanen Ry = 0 ves the ease nf an onlimary olay evil wit dso det staat spacitance, sitting the edly ehont eo constant Gy =D give the fave of an tir one eo or meting ©) — = representa n pice naive stat, The fst chjostive. is These tn evade the eure, charg, and conitet volloge in the jwinary viruik fur the period immediately ior interrupting he eieailestown in Pg. 2. Ths fllowige conse tions wi fe aed in the iil nay {i Ta santas ie ide," in, a yosmoun metal ape bree Asean aeraes This ts it Tek ells niall Wg meres outa, wad cor tours cowpeas hy certain wae ee nul trtwisors (i) Preert ocuolng ie ested betwona primary and soondary {68} Tee initial sentions Guat peice =o # = 0} ue thet the sew meen: 9 f= /oHt},* end the capacitor fv eaarged ta the vale 1, (G0) Tse las esl be nce to both psa a soaundary winange is prointinral to he abgeha'e aim af he Heat ‘cious ampere tunts of wimary ard exer, in aeordanee seth the usu amiguotie ini me 6) The fadyotanes af He Toa ce repnsned by lumped hue thigh eMecively simulate thr Muxceurent relation ia Tho enlie working gion. Uae of a lmpeenastant em nls the iva mptions, whieh otheewiee besame very ‘hiffent 9 anlee i simple forts. The massing of s lumped fonstane indietance is bestor understood vith the belp of Figs whieh shone the stati Haxeampere ua charectonsie FA typical eae magnet for opeeatng and lowing eyes Vor te present cas, the rleseing evele, op demagnetization curve, applies. The intowtanront iduetancn is the slope of